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Green rectangular DDR4 RDIMM module, black chips, gold contacts, no heat spreader

NEMIX RAM

NEMIX RAM 32GB DDR4 3200 PC4-25600 CL22 2Rx8 288-Pin ECC RDIMM Lenovo 4X77A85861 memory upgrade

SKU CH-ZA36-5DF85

32 GB DDR4 3200 ECC registered RDIMM for Lenovo ThinkSystem servers, CL22 latency at 1.2 V

  • Total capacity32 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 32 GB DDR4 3200 MHz expands server memory capacity
  • ECC registered design protects data integrity in critical workloads
  • 2 V operation reduces power draw per module
  • 288-pin RDIMM form factor fits Lenovo ThinkSystem slots
  • CL22 CAS latency delivers responsive access at rated speed

Lenovo ThinkSystem Server Memory Upgrade

This 32 GB DDR4 3200 ECC registered DIMM is built for Lenovo ThinkSystem servers running Intel processors. The module targets administrators who need to expand memory capacity in mission-critical environments while maintaining data integrity through error correction.

Single Module With OEM-Grade Components

The package contains one 288-pin RDIMM populated with major-brand DRAM from Samsung, Micron or Hynix. No heat spreader is included, so airflow in the server chassis must handle thermal management without additional surface area.

Straightforward Slot Installation

The DIMM seats in a standard DDR4 RDIMM slot and operates at 1.2 V with CL22 timing. Builders should verify the server’s qualified-vendor list and populate slots in the order prescribed by the system manual to avoid boot failures or reduced channel performance.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $316.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 32 GB
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $9.91 per GB
Typical for this category: the median of 20,941 items is $8.19 per GB.

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Specifications

Product
Brand nameNEMIX RAM
Product lineLenovo Server/Workstation Compatible Series Memory
Model nameLenovo DDR4 3200 MHz ECC RDIMM Registered Server Memory
Part numberMR25600-328K1
Total capacity32 GB
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsLenovo
In the box
Included items32 GB (1 × 32 GB) DDR4 3200 MHz PC4-25600 2Rx4 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Will the 288-pin DDR4 RDIMM need any firmware updates or reseating over time?

No firmware updates are required; the module is a passive component that remains seated once installed in a compatible Lenovo ThinkSystem server.

What is the first limit reached when the 32 GB module runs at 3200 MT/s continuously?

The CAS latency of CL22 sets the timing ceiling for sustained throughput at the rated 3200 MT/s speed.

How much heat and power does the 1.20 V registered ECC module generate during all-day operation?

Operating at 1.20 V without a heat spreader, the RDIMM draws minimal power and produces low heat typical for registered DDR4 server memory.

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